#3F0C09#3F0C09

#3F0C09 is a very dark, moderate red. Relative luminance 0.013; OKLCH L 24.7% C 0.079 H 27.9°. Best body text is #FFFFFF at 16.56:1 contrast (WCAG AA passes).

Color values

HEX	#3F0C09
RGB	rgb(63, 12, 9)
HSL	hsl(3, 75%, 14%)
HSV	hsv(3, 86%, 25%)
CMYK	cmyk(0%, 81%, 85.7%, 75.3%)
CIE-LAB	lab(11.55, 24.40, 14.20)
CIE-LCH	lch(11.55, 28.24, 30.20°)
OKLab	oklab(24.69% 0.0702 0.0372)
OKLCH	oklch(24.69% 0.079 27.9)
XYZ	xyz(2.2309, 1.3398, 0.3995)
Luminance	0.0134 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F0C09 #093C3F

analogous

#3F0921 #3F0C09 #3F2709

triadic

#3F0C09 #093F0C #0C093F

tetradic

#3F0C09 #213F09 #093C3F #27093F

square

#3F0C09 #213F09 #093C3F #27093F

split-complementary

#3F0C09 #093F27 #09213F

monochromatic

#1B0504 #1B0504 #3F0C09 #751611 #AA2018

Accessibility & contrast

On white

16.56

#3F0C09 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#3F0C09 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F0C09

16.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F0C09	#FFFFFF	#000000	##FFFFFF
##3F0C09	1.00	16.56	1.27	16.56
#FFFFFF	16.56	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B1808

Deuteranopia (green-blind)

#282307

Tritanopia (blue-blind)

#46000C

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #3f0c09;
/* rgb */ color: rgb(63, 12, 9);
/* oklch */ color: oklch(24.7% 0.079 27.9);

Tailwind

colors: {
  custom: {
    50: '#794f4a',
    500: '#3f0c09',
    950: '#000000',
  },
}

SCSS

$custom: #3f0c09;
$custom-light: #794f4a;
$custom-dark: #000000;

JSON

{
  "hex": "#3f0c09",
  "rgb": {
    "r": 63,
    "g": 12,
    "b": 9
  },
  "hsl": {
    "h": 3.333,
    "s": 75,
    "l": 14.118
  },
  "oklch": {
    "l": 0.24689,
    "c": 0.07946,
    "h": 27.9
  },
  "luminance": 0.01339
}

Semantic roles & 50–950 ramp

primary

#3F0C09

secondary

#27787D

accent

#E7F236

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0201

muted

#7C7877

Preview Lab

Preview with #3F0C09

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →